51849793 has 2 divisors, whose sum is σ = 51849794. Its totient is φ = 51849792.

The previous prime is 51849773. The next prime is 51849827. The reversal of 51849793 is 39794815.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37356544 + 14493249 = 6112^2 + 3807^2 .

It is a cyclic number.

It is not a de Polignac number, because 51849793 - 2⁵ = 51849761 is a prime.

It is not a weakly prime, because it can be changed into another prime (51849703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25924896 + 25924897.

It is an arithmetic number, because the mean of its divisors is an integer number (25924897).

Almost surely, 2^51849793 is an apocalyptic number.

It is an amenable number.

51849793 is a deficient number, since it is larger than the sum of its proper divisors (1).

51849793 is an equidigital number, since it uses as much as digits as its factorization.

51849793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 51849793 is about 7200.6800373298. The cubic root of 51849793 is about 372.8913785015.

The spelling of 51849793 in words is "fifty-one million, eight hundred forty-nine thousand, seven hundred ninety-three".